| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Room-in-roof insulation | — | £1,500 – £2,700 | £225 | 9.3 yrs | +9.0 pts |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £151 | 29.8 yrs | +6.0 pts · reaches C |
| Solar water heating | — | £4,000 – £6,000 | £127 | 39.5 yrs | +5.0 pts |
| Solid wall insulation | — | £4,000 – £14,000 | £176 | 50+ yrs | +7.0 pts · reaches B |
Grants verified 20 August 2026. Costs are the register’s indicative ranges. Savings are restated at the fuel prices assumed in July 2026. Points per measure are estimated from 19.9 million certificates and rescaled to this home’s own certificate delta; the total is the register’s figure.
Running costs
The full plan saves £679 a year — a 3.3% annual return on £20,600.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2021, states £1,038 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £175,618 HPI-indexed estimate, not a valuation
Derby Street: 10 sales since 1995
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Russell Scott Primary School | Primary | 0.6 mi | — |
| Greswell Primary School and Nursery | Primary | 0.6 mi | — |
| St Mary's RC Primary School | Primary | 0.7 mi | — |
| Denton Community Academy | Secondary | 0.3 mi | Not in the KS4 performance tables |
| St Thomas More RC College | Secondary | 0.7 mi | Progress 8 +0.43 · above average (2023/24) |
| Audenshaw School | Secondary | 0.8 mi | Progress 8 -0.06 · average (2023/24) |
Schools from the DfE register, performance from the KS4 performance tables. Progress 8 is a GCSE measure, so primaries have none. Distance is straight-line from the postcode, not a catchment: admission is decided by the school, not by us.